CVE-2026-18295

Public on 2026-08-20
Modified on 2026-08-24
Description
GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29510.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core gstreamer Not Affected
Amazon Linux 2 - Core gstreamer1 Not Affected
Amazon Linux 2023 gstreamer1 Not Affected
Amazon Linux 2 - Core gstreamer1-plugins-bad-free Not Affected
Amazon Linux 2023 gstreamer1-plugins-bad-free Not Affected
Amazon Linux 2 - Core gstreamer1-plugins-base Not Affected
Amazon Linux 2023 gstreamer1-plugins-base Not Affected
Amazon Linux 2 - Core gstreamer1-plugins-good Pending Fix
Amazon Linux 2023 gstreamer1-plugins-good Pending Fix
Amazon Linux 2 - Core gstreamer1-plugins-ugly-free Not Affected
Amazon Linux 2 - Core phonon-backend-gstreamer Not Affected
Amazon Linux 2023 python-gstreamer1 Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H